doctrine:
    dbal:
        dbname: mysql_db
        user: mysql_user
        password: mysql_s3cr3t
        unix_socket: /path/to/mysqld.sock
        shard_choser_service: foo.shard_choser
        shards:
            -
                id: 1
                user: shard_user
                dbname: shard_db
                password: shard_s3cr3t
                unix_socket: /path/to/mysqld_shard.sock
